From Eaters of the Dead:
Buliwfy called for seven sturdy horses, and in the early part of the day we rode from the great hall of Rothgar out into the flat plain, and thence toward the hills beyond. With us also were four hounds of pure white color, great animals which I should count nearer to wolves than dogs, so fierce was their demeanor. This made the totality of our attacking forces, and I believed it a weak gesture against so formidable an opponent, yet the Northmen place great faith upon surprise and a sly attack. Also, by their own reckoning they are each man the equal of three or four of any other.